Grease delivery receiver and nozzle couplable without fluid pressure bleed-down and having pressurization lockout and flush face coupling
First Claim
1. A grease line coupler comprising:
- a receiver having a body with a cylindrical receiving extension, said receiving extension having an entrance opening, said receiving extension housing a slidable poppet that is spring biased toward said entrance opening so that said entrance opening is normally closed; and
a nozzle having a generally hollow body with an exit opening, said body enclosing an immovable poppet that extends to the exit opening, said nozzle body also enclosing and surrounding a slidable, annular poppet seat that is spring-biased toward the exit opening so that it surrounds the immovable poppet, seals the exit opening, and forms, with the nozzle body and with the immovable poppet, an easily cleanable generally planar face when the nozzle is decoupled from said receiver, said body housing an internal ball valve that controls the flow of pressurized lubricating fluid through the nozzle, said ball valve coupled to a rotatable shaft to which an external handle is secured, said valve actuatable with said handle only when the nozzle exit opening is coupled to the receiver entrance opening;
wherein the slidable receiver poppet and the receiver body form an easily-cleanable, generally flush face when the receiver is decoupled from the nozzle and the slidable poppet is biased to a forwardmost position so as to seal the entrance opening.
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Accused Products
Abstract
A grease and lubricating oil line coupler includes a nozzle and a receiver which can be intercoupled for grease or lubricating oil delivery. Each component is equipped with a normally closed, sealed poppet, which prevents the entrance of dirt and other contaminants into the free ends thereof when decoupled, and which provides an easily-cleanable, flush-faced mating surface. The nozzle has a handle-operated internal valve with an interlock that is controlled by a quick disconnect slidable collar, which prevents the release of lubricants from the nozzle unless it is coupled to the receiver. Only when the nozzle and receiver are interconnected can the valve be opened, and only when the valve is closed can the nozzle be decoupled from the receiver. When the nozzle and receiver are coupled together, internal parts within the two components move to create a path through which lubricants can flow.
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Citations
16 Claims
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1. A grease line coupler comprising:
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a receiver having a body with a cylindrical receiving extension, said receiving extension having an entrance opening, said receiving extension housing a slidable poppet that is spring biased toward said entrance opening so that said entrance opening is normally closed; and a nozzle having a generally hollow body with an exit opening, said body enclosing an immovable poppet that extends to the exit opening, said nozzle body also enclosing and surrounding a slidable, annular poppet seat that is spring-biased toward the exit opening so that it surrounds the immovable poppet, seals the exit opening, and forms, with the nozzle body and with the immovable poppet, an easily cleanable generally planar face when the nozzle is decoupled from said receiver, said body housing an internal ball valve that controls the flow of pressurized lubricating fluid through the nozzle, said ball valve coupled to a rotatable shaft to which an external handle is secured, said valve actuatable with said handle only when the nozzle exit opening is coupled to the receiver entrance opening; wherein the slidable receiver poppet and the receiver body form an easily-cleanable, generally flush face when the receiver is decoupled from the nozzle and the slidable poppet is biased to a forwardmost position so as to seal the entrance opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A grease line coupler comprising:
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a receiver having a body with an entrance opening that is sealed by a spring-biased slidable poppet; and a nozzle having a body with an exit opening in an anterior portion thereof, which is sealed by a spring-biased slidable annular poppet seat, that rides over an immovable central poppet, said nozzle also having a slidable locking collar that alternatively either latches in a rearward position when the nozzle is decoupled from the receiver or latches the nozzle to the receiver when the nozzle is coupled to the receiver, said body housing an internal ball valve that controls the flow of pressurized lubricating fluid through the nozzle, said ball valve coupled to a rotatable shaft to which an eccentric lockout and a handle are secured, said eccentric lockout preventing actuation of said ball valve when the nozzle is decoupled from the receiver and the locking collar is latched in the rearward position; wherein the slidable receiver poppet and the receiver body form an easily-cleanable, generally flush face when the receiver is decoupled from the nozzle and the slidable poppet is biased to a forwardmost position so as to seal the entrance opening; and
the immovable poppet, the annular poppet seat, and the anterior portion of the nozzle body form an easily-cleanable, generally flush face when the nozzle is decoupled from the receiver and the annular poppet seat is biased to a forward most position so as to seal the exit opening. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification